/*
 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Xerces" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.apache.org.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
package com.sun.org.apache.xerces.internal.xinclude;

import java.util.Stack;
import com.sun.org.apache.xerces.internal.xinclude.XPointerSchema;

public class XPointerFramework {

        /*
                Todo's by next integration.
                While constructing schema names and uris use a dynamic datastructure.
         */

  XPointerSchema[] fXPointerSchema;
  String[] fSchemaPointerName;
  String[] fSchemaPointerURI;
  String fSchemaPointer;
  String fCurrentSchemaPointer;
  Stack fSchemaNotAvailable;
  int fCountSchemaName = 0;
  int schemaLength = 0;
  XPointerSchema fDefaultXPointerSchema;

  public XPointerFramework() {
    this(null);
  }

  public XPointerFramework(XPointerSchema[] xpointerschema) {
    fXPointerSchema = xpointerschema;
    fSchemaNotAvailable = new Stack();
  }

  public void reset() {
    fXPointerSchema = null;
    fXPointerSchema = null;
    fCountSchemaName = 0;
    schemaLength = 0;
    fSchemaPointerName = null;
    fSchemaPointerURI = null;
    fDefaultXPointerSchema = null;
    fCurrentSchemaPointer = null;
  }

  public void setXPointerSchema(XPointerSchema[] xpointerschema) {
    fXPointerSchema = xpointerschema;
  }

  public void setSchemaPointer(String schemaPointer) {
    fSchemaPointer = schemaPointer;
  }

  public XPointerSchema getNextXPointerSchema() {
    int i = fCountSchemaName;
    if (fSchemaPointerName == null) {
      getSchemaNames();
    }
    if (fDefaultXPointerSchema == null) {
      getDefaultSchema();
    }
    if (fDefaultXPointerSchema.getXpointerSchemaName().equalsIgnoreCase(fSchemaPointerName[i])) {
      fDefaultXPointerSchema.reset();
      fDefaultXPointerSchema.setXPointerSchemaPointer(fSchemaPointerURI[i]);
      fCountSchemaName = ++i;
      return getDefaultSchema();
    }
    if (fXPointerSchema == null) {
      fCountSchemaName = ++i;
      return null;
    }

    int fschemalength = fXPointerSchema.length;

    for (; fSchemaPointerName[i] != null; i++) {
      for (int j = 0; j < fschemalength; j++) {
        if (fSchemaPointerName[i].equalsIgnoreCase(fXPointerSchema[j].getXpointerSchemaName())) {
          fXPointerSchema[j].setXPointerSchemaPointer(fSchemaPointerURI[i]);
          fCountSchemaName = ++i;
          return fXPointerSchema[j];
        }
      }

      if (fSchemaNotAvailable == null) {
        fSchemaNotAvailable = new Stack();
      }

      fSchemaNotAvailable.push(fSchemaPointerName[i]);
    }
    return null;
  }

  public XPointerSchema getDefaultSchema() {
    if (fDefaultXPointerSchema == null) {
      fDefaultXPointerSchema = new XPointerElementHandler();
    }
    return fDefaultXPointerSchema;
  }

  public void getSchemaNames() {
    int count = 0;
    int index = 0, lastindex = 0;
    int schemapointerindex = 0, schemapointerURIindex = 0;
    char c;
    int length = fSchemaPointer.length();
    fSchemaPointerName = new String[5];
    fSchemaPointerURI = new String[5];

    index = fSchemaPointer.indexOf('(');
    if (index <= 0) {
      return;
    }

    fSchemaPointerName[schemapointerindex++] = fSchemaPointer.substring(0, index++).trim();
    lastindex = index;
    String tempURI = null;
    count++;

    while (index < length) {
      c = fSchemaPointer.charAt(index);
      if (c == '(') {
        count++;
      }
      if (c == ')') {
        count--;
      }
      if (count == 0) {
        tempURI = fSchemaPointer.substring(lastindex, index).trim();
        fSchemaPointerURI[schemapointerURIindex++] = getEscapedURI(tempURI);
        lastindex = index;
        if ((index = fSchemaPointer.indexOf('(', lastindex)) != -1) {
          fSchemaPointerName[schemapointerindex++] = fSchemaPointer.substring(lastindex + 1, index)
              .trim();
          count++;
          lastindex = index + 1;
        } else {
          index = lastindex;
        }
      }
      index++;
    }
    schemaLength = schemapointerURIindex - 1;
  }

  public String getEscapedURI(String URI) {
    return URI;
  }

  public int getSchemaCount() {
    return schemaLength;
  }

  public int getCurrentPointer() {
    return fCountSchemaName;
  }

}//XPointerFramwork
